CVE-2026-77908

highpriority · track · 35EPSS 0.010 · 62 %ileRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.99% (62nd) EPSS

CVSS 8.8 · high

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

fstec_bdu · msrc_csaf · nvd

EPSS · scored 2026-10-27

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Dynamics 365 Customer Engagement V9.1msrc_csaf
9.1.0048.0004:Security Update:https://support.microsoft.com/help/5123731
https://support.microsoft.com/help/5123731

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USCWE-94USCWE-94US

affected products (4)

Products and version ranges known to be affected.

Microsoft Corp Microsoft Dynamics 365 Customer Engagement≤ 9.1.0048.0004fstec_bduRU
Microsoft Microsoft Dynamics 365 Customer Engagement V9.1all versionsfixedmsrc_csafUS
Microsoft Microsoft Dynamics 365 Customer Engagement V9.1< 9.1.0048.0004msrc_csafUS
microsoft dynamics 365< 9.1.0048.0004nvdUScpe:2.3:a:microsoft:dynamics_365:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

msrc_CVE-2026-77908Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16029 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu msrc_csaf nvd NVD CVE.org MITRE

published 2026-09-08modified 2026-10-07

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77908Vendor Advisory

scry

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